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   Articles with "input impedance" as a keyword



Theoretical investigation on the input impedance of a CPW fed strip monopole antenna

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recommendations! Published in 2017 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.30287

Abstract: Theoretical analysis for the input impedance of a CPW fed strip monopole antenna is made. Induced emf method is used for the purpose. The analysis is compared with the simulation results. © 2016 Wiley Periodicals,… read more here.

Keywords: fed strip; cpw fed; input impedance; impedance cpw ... See more keywords

Estimating air-substrate microstrip patch antenna input impedance with characteristic mode theory

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recommendations! Published in 2017 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.30703

Abstract: The theory of characteristic modes (TCM) for PEC bodies is showing great promise and application in the analysis, design, and placement of antennas. Its use for input impedance estimation, however, is still largely dependent on… read more here.

Keywords: microstrip patch; theory; input; input impedance ... See more keywords

A CMOS low voltage, very low power fully differential orderly current buffer with ultra low input impedance and high CMRR

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recommendations! Published in 2019 at "Analog Integrated Circuits and Signal Processing"

DOI: 10.1007/s10470-019-01415-z

Abstract: This paper presents the CMOS realization of the first generation orderly current buffer, OCBI. Its design is inspired by BJT version OCB. Employing CMOS technology leads to highly desired features of lower voltage operation, greatly… read more here.

Keywords: fully differential; voltage; orderly current; input impedance ... See more keywords

Analytic Evaluation of Input Impedance of an Equilateral Triangular Dielectric Resonator Antenna

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recommendations! Published in 2019 at "IETE Journal of Research"

DOI: 10.1080/03772063.2019.1684846

Abstract: In this paper, analytical expressions are given to evaluate the input impedance of a probe-fed (inserted) Equilateral Triangular Dielectric Resonator Antenna (ETDRA) for different TMmnpz modes for ... read more here.

Keywords: dielectric resonator; triangular dielectric; resonator antenna; input impedance ... See more keywords
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Current Distribution and Input Impedance of a VLF Tubular Antenna in a Cold Plasma

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recommendations! Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.3011404

Abstract: As the U.S. and Europe launched the very low frequency (VLF: 3–30 kHz) space-borne transmitting and propagation experiments during the past thirty years, space-borne antennas have been playing a more and more important role in… read more here.

Keywords: current distribution; antenna; input; input impedance ... See more keywords

Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth

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recommendations! Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3163821

Abstract: An improved method of reducing the input impedance of a four-arm sinuous antenna is demonstrated for a wide gain bandwidth. The proposed antenna has a dual-linear polarized response for electronic support measures (ESM) systems and… read more here.

Keywords: four arm; input impedance; impedance; gain bandwidth ... See more keywords

Theory of Input Impedance of a Slot Antenna With Two Parasitically Excited Wires

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recommendations! Published in 2024 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2024.3369700

Abstract: This letter presents the formulation and validation of the theory of the input impedance of a slot antenna with two parasitically excited wires. First, the self-impedance of an inverted-L wire, the mutual impedance between the… read more here.

Keywords: parasitically excited; input impedance; impedance; two parasitically ... See more keywords

A First-Order Model of the Multiple-Feed Toroidal Magneto-Dielectric Antenna

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recommendations! Published in 2017 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2017.2748184

Abstract: A model of the input impedance of the toroidal permeable antenna, which is the dual of the conventional metal loop antenna, is derived, starting from Schelkunoff’s transmission line description of the loop antenna instead of… read more here.

Keywords: toroidal; antenna; model; input impedance ... See more keywords

A Simplified Derivation of Causality From Passivity for the Impedance Representation of Transmitting Antennas

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recommendations! Published in 2022 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2021.3098531

Abstract: A relatively simple, straightforward, self-contained derivation, sufficiently general for most engineering purposes, is given to show that passivity implies causality for the input-impedance representation of linear, single-port, time-invariant transmitting antennas. The necessary and sufficient condition… read more here.

Keywords: input impedance; impedance representation; transmitting antennas; impedance ... See more keywords

A 101-dB DR 2.2GΩ-Input-Impedance Direct Digitization ExG Front-End With Δ-Modulation.

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recommendations! Published in 2025 at "IEEE transactions on biomedical circuits and systems"

DOI: 10.1109/tbcas.2025.3563304

Abstract: Long-term, continuous health monitoring imposes stringent demands on bio-recording analog front-end (AFE) circuits, specifically in terms of dynamic range (DR), noise, input impedance, and power consumption. This work introduces a DR-enhanced direct-digitization AFE based on… read more here.

Keywords: input; direct digitization; input impedance; 101 input ... See more keywords

Instrumentation Amplifier Input Impedance Calibration With Machine Learning-Based Optimizations

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recommendations! Published in 2025 at "IEEE Transactions on Circuits and Systems II: Express Briefs"

DOI: 10.1109/tcsii.2025.3526145

Abstract: This brief introduces a digital calibration technique to boost the input impedance of instrumentation amplifiers (IAs) with digitally tunable input impedance. The technique employs two machine learning-driven optimization algorithms, the genetic algorithm (GA) and the… read more here.

Keywords: input; inline formula; input impedance; tex math ... See more keywords